NASA-TN-D-6777
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- June 16, 2016 Create Date
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Flight Determined Derivatives and Dynamic Characteristics of the CV-990 Airplane
Although jet transports have been in operation about 10 years, there is little pub—
lished information on the basic aerodynamic characteristics of this class of aircraft.
Documentation of the stability and control derivatives and characteristics of a repre—
sentative aircraft of this class would provide useful baseline data for comparison with
design trends of future transports and for use in simulation studies. To provide such
documentation, a flight program was conducted on a NASA—operated CV—990 transport
which included investigations of stalls (ref. 1), landings, ground effects, noise (ref. 2),
handling qualities (refs. 3 and 4), and aerodynamic characteristics.
This report documents a wide range of aerodynamic stability and control derivatives
obtained from stability and control maneuvers by using a newly developed digital—
computer matching program (Newton—Raphson method described in ref. 5). The report
also includes the calculated longitudinal short—period and Dutch roll characteristics of
the airplane as well as measured phugoid characteristics.
The longitudinal and lateral—directional derivatives are presented for flight condi—
tions from 120 knots to 195 knots indicated airspeed at an altitude of approximately
3960 meters (13,000 feet) with the airplane in various landing configurations and for
Mach numbers from 0.40 to 0. 87 at altitudes of 6096 meters and 10, 670 meters
(20, 000 feet and 35, 000 feet) in the cruise configuration.
| File | Action |
|---|---|
| NASA-TN-D-6777 Flight Determined Derivatives and Dynamic Characteristics of the CV-990 Airplane.pdf | Download |
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